My list seems to grow about as fast as I complete stuff. Some of the stuff is just ideas, though, which I may decide are stupid. Right now I'm working on making retrievable projectiles (darts, etc.) behave a bit more realistically. Instead of disappearing when they hit decorations, they stick, as they would to a wall. I'm trying to make them bounce off of metal and glass ones. Once the bouncing's working, I'm gonna set 'em up to bounce off of level geometry if the texture it hits is something hard, like metal or rock. Once that's all working, I'll work on having them add themselves to the inventories of pawns you hit, so they can be retrieved from their corpses.
Besides some small details I'd like to mess with, some of the larger things I'd like to add are making the spy drone capable of frobbing things (accessing computers, using keypads, etc.) remotely, giving the plasma rifle limited wall penetration abilities (coupled with IR goggles or the new vision aug, the plasma rifle might actually have a purpose this way), and decapitation.
Besides some small details I'd like to mess with, some of the larger things I'd like to add are making the spy drone capable of frobbing things (accessing computers, using keypads, etc.) remotely, giving the plasma rifle limited wall penetration abilities (coupled with IR goggles or the new vision aug, the plasma rifle might actually have a purpose this way), and decapitation.